Answer:
Coal
Explanation:
Helped work become faster.
Answer:
B. the direction of the wind at the time it was deposited
Explanation:
Cross beds refers to those rock beds which are formed due to the deposition of bed forms such as dunes. These cross beds are the group of inclined layer which is formed due to the flowing of water or wind. These rock beds represents the movement or direction of wind and water at the time of deposition and as a result cross beds are formed. So we can say that cross beds were formed due to the direction of wind.
The Electromagnetic Spectrum. Light is part of aspectrum of electromagnetic energy that includesradio waves, microwaves, infrared radiation, visible light, ultraviolet "light", x rays, and gamma rays. Electromagnetic energy travels as waves that vary inwavelength. ... Ultraviolet is shorter wavelengthsthan violet.
The right answer is sexual reproduction.
Reproduction is the set of processes by which a species is perpetuated, causing the birth of new organisms. In sexual reproduction, the increased complexity of the genome must develop two different but compatible versions: one male, the other female within each individual (two alleles from both parents). In addition, the species is constrained to a slower evolutionary process to maintain compatibility, where asexual individuals can mutate much more rapidly to adapt to changes such as many bacteria and viruses.